Energy storage control method based on impedance detection

The invention provides an energy storage control method based on impedance detection. The new energy storage control method is introduced, stored energy can supply power to a system when a major network breaks down by developing reasonable control strategies, synchronization of energy storage is achieved after the major network is recovered, and rapid cutting can be carried out after energy storage faults; through application of the energy storage control method, the power supply reliability of a power grid can be improved, the stored energy application field is further expanded, and loads of the power grid are relieved. The impedance detection principle is adopted in the energy storage control method, so that the energy storage system is more effectively and rapidly controlled, and the load power supply stability is effectively guaranteed; meanwhile, the power grid construction can be reduced, the power fluctuation can be smoothened, and the positive effect is played on guaranteeing the safety of the power grid.